package com.yykj.order.center.server.service;


import java.util.List;

public interface MessageService {
    void sendMeg(String fromImId, String toImId, String content);

    void sendSysMeg(String toImId, String content);

    void memberAdd(String groupId, List<String> memberList);

    void memberDelete(String groupId, String reason, List<String> memberList);
}
